在Swift中获取PHAsset的位置-GettingthelocationofaPHAssetinSwift

For some reason the location property on a PHAsset is only exposed in Objective-c and not in Swift.

由于某种原因,PHAsset上的location属性仅在Objective-c中公开,而不在Swift中公开。

Documentation: PHAsset.location

To work around it, I figured I could create a Objective-C class whose sole purpose is to extract the location and import it into Swift.

为了解决这个问题,我想我可以创建一个Objective-C类,其唯一目的是提取位置并将其导入Swift。

LocationGetter.h

@interface LocationGetter : NSObject
+ (CLLocation *)locationForAsset:(PHAsset *) asset;
@end

LocationGetter.m

@implementation LocationGetter
+ (CLLocation *)locationForAsset:(PHAsset *) asset {
    return [asset location];
}
@end

So far so good, but when I try to use it in Swift:

到目前为止一切都那么好,但是当我尝试在Swift中使用它时:

LocationGetter.locationForAsset(ass)

'LocationGetter.Type' does not have a member named 'locationForAsset'

'LocationGetter.Type'没有名为'locationForAsset'的成员

Bonus question: Why on earth didn't Apple expose location in swift?

奖金问题:为什么Apple没有公开位置?

2 个解决方案

import CoreLocation

LocationGetter.locationForAsset(ass)

var allAssets = PHAsset.fetchAssetsWithMediaType(PHAssetMediaType.Image, options: nil)
    allAssets.enumerateObjectsUsingBlock({asset, index, stop in
        if let ass = asset as? PHAsset{
            println(ass.location)
        }
    }